JPS5471258A - Controlling device in oil pressure driving device - Google Patents

Controlling device in oil pressure driving device

Info

Publication number
JPS5471258A
JPS5471258A JP13787077A JP13787077A JPS5471258A JP S5471258 A JPS5471258 A JP S5471258A JP 13787077 A JP13787077 A JP 13787077A JP 13787077 A JP13787077 A JP 13787077A JP S5471258 A JPS5471258 A JP S5471258A
Authority
JP
Japan
Prior art keywords
main circuit
circuits
oil pressure
main
pressure driving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13787077A
Other languages
Japanese (ja)
Inventor
Taketo Ariga
Koichi Morita
Kenzo Hoashi
Yasuo Kojima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Komatsu Ltd
Original Assignee
Komatsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP13787077A priority Critical patent/JPS5471258A/en
Publication of JPS5471258A publication Critical patent/JPS5471258A/en
Priority to US06/122,273 priority patent/US4324098A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/44—Control of exclusively fluid gearing hydrostatic with more than one pump or motor in operation
    • F16H61/456—Control of the balance of torque or speed between pumps or motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • F16H61/423—Motor capacity control by fluid pressure control means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Control Of Fluid Gearings (AREA)
  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)

Abstract

PURPOSE: To provide the subject controlling device wherein even when the pressure of one main circuit of the oil pressure driving circuit at the time of parking is going to be increased, it is short-circuited to other main circuit through a shuttle valve, thereby to maintain the pressures of both main circuits to be equal and prevent the creep.
CONSTITUTION: Neutral circuits of shuttle valves 4a and 4b used in oil pressure driving circuits B and B' provided with variable pumps 2a and 2b and variable motors 8a and 8b, further both parts being constituted in a loop shape by two main circuits, are short-circuited to a circuit from a charge pump 13 and two main circuits C1, C2, C'1 and C'2, and throttles D1, D2, D'1 and D'2 are provided at the main circuit side. According to the above described organization, even when the pressure of one main circuit of the oil pressure driving device is going to increase, it is short- circuited to other main circuit through shauttle valves 4a and 4b, and hence the pressures of both main circuit become equal and prevention of creep becomes pessible.
COPYRIGHT: (C)1979,JPO&Japio
JP13787077A 1977-11-18 1977-11-18 Controlling device in oil pressure driving device Pending JPS5471258A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP13787077A JPS5471258A (en) 1977-11-18 1977-11-18 Controlling device in oil pressure driving device
US06/122,273 US4324098A (en) 1977-11-18 1980-02-19 Hydraulic circuit for a hydraulically driven vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13787077A JPS5471258A (en) 1977-11-18 1977-11-18 Controlling device in oil pressure driving device

Publications (1)

Publication Number Publication Date
JPS5471258A true JPS5471258A (en) 1979-06-07

Family

ID=15208634

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13787077A Pending JPS5471258A (en) 1977-11-18 1977-11-18 Controlling device in oil pressure driving device

Country Status (2)

Country Link
US (1) US4324098A (en)
JP (1) JPS5471258A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467129A1 (en) * 1979-10-09 1981-04-17 Komatsu Mfg Co Ltd HYDRAULIC CIRCUIT FOR A HYDRAULIC CONTROL VEHICLE

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1150232B (en) * 1981-03-12 1986-12-10 Linde Ag COMMAND DEVICE FOR A STEERED VEHICLE WITH DIFFERENTIAL SPEED
JPS592930A (en) * 1982-06-29 1984-01-09 Komatsu Ltd Oil hydraulic circuit of hydraulic driven working vehicle
US4631920A (en) * 1983-04-05 1986-12-30 Linde Aktiengesellschaft Controls for the drive of a vehicle with differential speed steering
US4599855A (en) * 1983-04-05 1986-07-15 Linde Aktiengesellschaft Controls for the drive of a vehicle with differential speed steering
US4530416A (en) * 1983-05-23 1985-07-23 Fmc Corporation Hydrostatic propulsion system and method with inching throttle and brake
US4554992A (en) * 1983-09-09 1985-11-26 Fmc Corporation Hydraulically operated four wheel sweeper
EP0183684A1 (en) * 1983-09-27 1986-06-11 EDGERTON, Edgar Robert Charles Skid steer loaders
US5249422A (en) * 1991-12-20 1993-10-05 Caterpillar Inc. Apparatus for calibrating the speed of hydrostatically driven traction motors
US6739128B2 (en) 2001-05-24 2004-05-25 Tecumseh Products Company Electronically controlled dampener for hydrostatic transmission
WO2007089305A1 (en) * 2006-02-02 2007-08-09 White Drive Products, Inc. Control component for hydraulic circuit including spring applied-hydraulically released brake
US7909414B2 (en) * 2006-03-10 2011-03-22 White Drive Products, Inc. Hydraulic circuit for spring applied-hydraulically released brake and hydraulic motor
US7722131B2 (en) * 2006-02-02 2010-05-25 White Drive Products, Inc. Control component for a spring applied-pressure released hydraulic brake and hydraulic motor
US7914084B2 (en) * 2006-02-02 2011-03-29 White Drive Products, Inc. Control component for hydraulic circuit including spring applied-hydraulically released brake
US7707829B2 (en) * 2007-09-07 2010-05-04 Caterpillar S.A.R.L. Flushing system having a single charge relief valve
DE102012222637A1 (en) * 2012-12-10 2014-06-12 Senvion Se Turn drive for a wind turbine and method for rotating the rotor shaft of a wind turbine
US10151331B2 (en) * 2015-12-15 2018-12-11 Deere & Company Electronic begin of regulation control for a hydraulic motor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4910695U (en) * 1972-04-27 1974-01-29

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247919A (en) * 1963-11-21 1966-04-26 Sundstrand Corp Hydrostatic transmission
US3659419A (en) * 1969-10-13 1972-05-02 Hitachi Construction Machinery Hydraulic circuit of hydraulically driven vehicle
US3896617A (en) * 1973-11-01 1975-07-29 Caterpillar Tractor Co Steering system with electrically driven secondary steering means
DE2516771A1 (en) * 1975-04-16 1976-10-28 Zahnradfabrik Friedrichshafen HYDROSTATIC POWER STEERING, IN PARTICULAR FOR MOTOR VEHICLES
US4024796A (en) * 1975-09-24 1977-05-24 Caterpillar Tractor Co. Float control electrical circuit for a blade
US3982469A (en) * 1976-01-23 1976-09-28 Caterpillar Tractor Co. Apparatus for controlling work element operating pressures in a fluid system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4910695U (en) * 1972-04-27 1974-01-29

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2467129A1 (en) * 1979-10-09 1981-04-17 Komatsu Mfg Co Ltd HYDRAULIC CIRCUIT FOR A HYDRAULIC CONTROL VEHICLE
US4376371A (en) * 1979-10-09 1983-03-15 Kabushiki Kaisha Komatsu Seisakusho Hydraulic circuit for a hydraulically driven vehicle

Also Published As

Publication number Publication date
US4324098A (en) 1982-04-13

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